Publications by authors named "Anne Castles"

Background: Despite evidence that synthetic phonics teaching has increased reading attainments, a sizable minority of children struggle to acquire phonics skills and teachers lack clear principles for deciding what types of additional support are most beneficial. Synthetic phonics teaches children to read using a decoding strategy to translate letters into sounds and blend them (e.g.

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  • The study explored how primary school children learn to read new complex words by first hearing them spoken, testing their understanding of both oral and written forms.
  • After training, children read these new words in sentences while their eye movements were tracked, revealing they read words with predictable spellings faster than unpredictable ones.
  • Results indicate that children developed strong spelling expectations for these new words naturally during oral learning, showcasing their emerging reading skills.
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  • The study used magnetoencephalography (MEG) and fast periodic visual stimulation (FPVS) to explore how both children and adults respond to morphemes in words.
  • Participants saw rapid streams of base stimuli mixed with 'oddball' stimuli (like familiar words) to measure neural responses to morphological structures.
  • Results indicated that while developing readers (children) showed a central occipital response for identifying stems, skilled readers (adults) had a more left-side response for identifying suffixes, highlighting differences in morpheme processing maturity between the two groups.
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Do readers benefit from their knowledge of the phonological form and meaning of stems when seeing them embedded in morphologically complex words for the first time in print? This question was addressed using a word learning paradigm. Participants were trained on novel spoken word stems and their meanings ("tump"). Following training, participants then saw the novel stems for the first time in print, either in combination with a real affix () or with a non-affix ().

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Children's oral vocabulary acquisition is an important aspect of language development that plays a crucial role in reading and literacy development and subsequent academic success. Therefore, it is important to identify and implement evidence-based effective strategies of vocabulary instruction for primary school children. Orthographic facilitation refers to the benefit afforded to word learning by incidentally presenting spellings when new words are introduced.

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This study explored whether a daytime nap aids children's acquisition of letter-sound knowledge, which is a fundamental component for learning to read. Thirty-two preschool children in Sydney, Australia (M  = 4 years;3 months) were taught letter-sound mappings in two sessions: one followed by a nap and the other by a wakeful period. Learning was assessed by explicit letter-sound mappings ("Which sound does this letter make?") and knowledge generalization tasks ("Here's Tav and Cav, which one is /kav/?").

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  • This study explored how spacing study sessions affects children's learning of new written words, contrasting it with massed (consecutive) study sessions.
  • Involving 37 third and fourth graders, the experiment had them read sentences containing novel words either spaced out or in a block format.
  • Results showed that children recognized words learned in the spaced condition better, but the spacing did not significantly affect their ability to recall the words through spelling.
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Purpose Learning spoken words can be challenging for children with hearing loss who communicate orally and who are known to have weaker oral vocabulary skills than age-matched children who hear. Since vocabulary skills play a crucial role in reading and literacy acquisition, and academic success, it is important to identify effective vocabulary acquisition strategies for children with hearing loss. The aim of this study was to examine whether the incidental presence of orthography can facilitate oral vocabulary learning in children with hearing loss and whether the benefits are greater than those found in hearing children.

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Literate children can generate expectations about the spellings of newly learned words that they have not yet seen in print. These initial spelling expectations, or orthographic skeletons, have previously been observed at the first orthographic exposure to known spoken words. Here, we asked what happens to the orthographic skeleton over repeated visual exposures.

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Learning to read in most alphabetic orthographies requires not only the acquisition of simple grapheme-phoneme correspondences (GPCs) but also the acquisition of context-sensitive GPCs, where surrounding letters change a grapheme's pronunciation. We aimed to explore the use and development of simple GPCs (e.g.

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  • Spoken language influences reading processes, but the specifics of how this happens are not fully understood.
  • Recent research indicates that predictions about how newly learned spoken words are spelled can occur before seeing the written form.
  • An experiment showed that adults who learned the spoken forms of complex words read the printed versions faster and formed spelling expectations based on whether the spellings were predictable, suggesting that oral training aids in developing these spelling predictions.
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A visual attention span (VAS) deficit has been widely reported in the Developmental Dyslexia (DD) literature, however, consensus regarding what underlies this problem and the nature of its relationship with reading ability remains elusive. Thirty-two children with DD (15 females) were compared with 23 age matched (12 females) and 17 reading matched controls (9 females) on the combined Theory of Visual Attention (CombiTVA) paradigm with traditional letter and novel symbol conditions. The DD group performed more slowly than the age matched controls in terms of processing speed, but similarly to reading matched controls.

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The aim of the current research was to test the hypothesis that the activation of embedded words (e.g., the farm in farmhouse) is the starting point for the development of an abstract morphological parsing system in children's reading.

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Background: The reading skills of 16% of children fall below the mean range for their age, and 5% of children have significant and severe reading problems. Phonics training is one of the most common reading treatments used with poor readers, particularly children.

Objectives: To measure the effect of phonics training and explore the impact of various factors, such as training duration and training group size, that might moderate the effect of phonics training on literacy-related skills in English-speaking poor readers.

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Purpose The purpose of the current study was to investigate the relationship between orthographic learning and language, reading, and cognitive skills in 9-year-old children who are deaf or hard of hearing (DHH) and to compare their performance to age-matched typically hearing (TH) controls. Method Eighteen children diagnosed with moderate-to-profound hearing loss who use hearing aids and/or cochlear implants participated. Their performance was compared with 35 age-matched controls with typical hearing.

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Surface dyslexia is characterised by poor reading of irregular words while nonword reading can be completely normal. Previous work has identified several theoretical possibilities for the underlying locus of impairment in surface dyslexia. In this study, we systematically investigated whether children with surface dyslexia showed different patterns of reading performance that could be traced back to different underlying levels of impairment.

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There is intense public interest in questions surrounding how children learn to read and how they can best be taught. Research in psychological science has provided answers to many of these questions but, somewhat surprisingly, this research has been slow to make inroads into educational policy and practice. Instead, the field has been plagued by decades of "reading wars.

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This research examines the acquisition of letter-position processing. Study 1 investigated letter-position processing in Grades 1-6 and adult readers, using the occurrence of specific error types as the outcome measure. Between Grades 1 and 2, there was a shift from making more other-word to making more letter-position errors.

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According to the self-teaching hypothesis (Share, 1995), phonological decoding is fundamental to acquiring orthographic representations of novel written words. However, phonological decoding is not straightforward in non-alphabetic scripts such as Chinese, where words are presented as characters. Here, we present the first study investigating the role of phonological decoding in orthographic learning in Chinese.

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The self-teaching hypothesis describes how children progress toward skilled sight-word reading. It proposes that children do this via phonological recoding with assistance from contextual cues, to identify the target pronunciation for a novel letter string, and in so doing create an opportunity to self-teach new orthographic knowledge. We present a new computational implementation of self-teaching within the dual-route cascaded (DRC) model of reading aloud, and we explore how decoding and contextual cues can work together to enable accurate self-teaching under a variety of circumstances.

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It is well-established that poor readers exhibit deficits in paired associate learning (PAL), and there is increasing evidence for a phonological locus of these deficits. However, it remains unclear whether poor performance stems from difficulties specific to the phonological output system or difficulties that affect both phonological input and output processes. Understanding these deficits is important not only in the context of PAL but also for informing broader theories of typical and atypical reading development.

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Recent evidence from visual word recognition points to the important role of embedded words, suggesting that embedded words are activated independently of whether they are accompanied by an affix or a non-affix. The goal of the present research was to more closely examine the mechanisms involved in embedded word activation, particularly with respect to the "edge-alignedness" of the embedded word. We conducted two experiments that used masked priming in combination with lexical decision.

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Article Synopsis
  • Research showed that during the initial stages of visual word recognition, complex words are broken down into their smallest meaningful units, or morphemes.
  • A study examined how this decomposition occurs with both prefixed and suffixed nonwords, using different types of word relationships to test their impact on recognizing target words.
  • Results indicated that nonwords with embedded stems facilitate recognition of their targets, regardless of the presence or absence of real affixes, with more significant effects seen when the relationship was semantically clear.
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There is an established association between children's oral vocabulary and their word reading but its basis is not well understood. Here, we present evidence from eye movements for a novel mechanism underlying this association. Two groups of 18 Grade 4 children received oral vocabulary training on one set of 16 novel words (e.

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